Nebulizer of liquids



A. w. MORSE NEBULIZER OF LIQUIDS Filed Feb. 10 1921 fl/berf W MorseINVENTOR. BY m;

A TTORNEY.

Patented Oct. 30, 1923.

hairs, stares NEBULIZER or L'IQUIns- Application filed February 10,1921. Serial No. 443,941.

To aZZ whom it may concern: Be it known that I, ALBERT W. MORSE, acitizen of the United States, and a resident of Long Island City, in thecounty of Queens and State of New York, have invented certain new anduseful Improvements in Nebulizers of Liquids, of which the following isa specification, 7

This invention relates to nebulizers of liquids, that is apparatus forcausing liquids to assume the form of an extremely fine mist; and theinvention particularly relates to nebulizers of the free centrifugaltype hereinafter disclosed, wherein the centrifu- 0 gal action isobtained, not by movingparts or by stationary batfles in the dischargepassage, but by the tangential direction of inlet orifices into aso-called centrifugal chamber within the discharge nozzle, substantiallyas described in Patent #876,108, issued J anuary 7th, 1908, to Stringhamand Elmendorf.

Nebulizers of this kind are-used in connection with various devices,such as fuel oil burners, paint spraying apparatus, etc., and

it is the particular object of this invention to provide the nebulizernozzle with means to give the spray issuing therefrom a substantiallyfan-like or flat shape, instead of conical as heretofore. This is ofspecial advantage when using .the device embodied with this nebulizer asa paint spraying medium, so as to give the effect of a brush; or, ifused in connection with a fuel burner,

p when the same'is mounted near thefurnace arch, a fiat or fan-likespray is of utmost advantage, to avoid the melting of the arch.

Other objects of the invention will appear in the followingspecifications in which the nebulizer is shown in connection with a fueloil burner.

The invention is illustrated by means of the accompanying drawings inwhich Fig. 1 is a vertical longitudinal sectional view of the burner;

Fig. 2 is an enlarged vertical longitudinal sectional view of thenebulizer proper;

Fig. 3 is an elevation and Fig. 4 a plan view of the nebulizer; and

Fig. 5 a cross sectional view along the plane of line 55 in Fig. 2.

Like characters of reference denote similar parts throughout the severalviews and the following description.

10 is a hollow casing of substantially L shape, the shorter branch 11 ofwhich 1s a hollow core 24 cylindrical tapped at '12for an air supply 13,communicatingwith theinterior of casing 10. The longenbranch 1'4of'casing 10 is threaded exteriorly at 15, to receive an air adjustingcap 16,. provided with an outlet opening 17, and held 1nadjustable'position on branch 14 by means of a lock nut 18.Extendingcentrally through the casing 10, concentric with 1ts' longerbranch 14, is a tube. 19 preferably integral with the casing 10. Thistube 19 is threaded interiorly at 20, adjacent the' air tube 13, toreceive a fuelsupply. pipe 21. 'Y

The other end of tube 19v projects slightly beyond branch 14 of casing10 and is threaded interiorly at 22 to receive a neubulizer 23..

Nebulize'r 23 is provided in' its center with l x in shape, called thecentrifugal chamber. 25 is a plug screwed into the lower part of thenebulizer for the purpose of machining the centrifugal chamber. The topofthe centrifugal chamber 24 is conically shaped at 26 and provided atits apex with a nebulizing outlet 27. Nebulizer 23 is screwed into tube19 by means of a threaded portion 28 and a tight joint is effectedthereon with a flange 29. 30 and 31 are small drills in the nebulizer,and 32 and 33 are ducts or inlet orifices, joiningthe innermost portionof drills 30 and 31 with the upper part of the centrifugal chamber 24.Ducts 32 and 33 are positioned so as to impinge the circumference of thecentrifugal chamber 24 tangentially,

as shown in Fig. 5. They are further slightly inclined towards the outerend. 34 and 35 are parallel projecting flat surfaces at the dischargeside of the nebulizer forming a slot 36 the axis of which passes throughthe center of the nebulizing outlet 27.

The operation of this device is as follows:

Oil is admitted into the burner under pressure, through supply pipe 21,thence through tube 19 into the nebulizer 23. Then through drills 30 and31 and inlet orifices 32 and 33 into centrifugal chamber24. Owing to thedirection of the inlet orifices, tangentially with respect to the wallof chamber 24, the oil is being given a swirling motion, and is finallyexpelled in a rotary swirl from out let 2?, where, due to the projectingflat surfaces 34 and 35, it assumes the shape of a fan, the apex ofwhich is the outlet 27.

Air is admitted, under pressure, into the interior of casing 10 by meansof pipe 13,

whence it is deflected by cap 16 towards the spray of oil issuing fromnebulizing outlet 27, where a vapor of high combustive qualities is theresult. g

It is understood that various changes in the form, proportion and minordetails of construction may be resorted to without departing from theprinciple or sacrificing any of the advantages ofthe invention asdefined in the appended claims. Furthermore, while the nebulizing nozzleis shown in combination with an oil burner it is understood that thisinvention may be used in connection with any device utilizing the actionof nebulizing liquids.

lVhat I claim as new, is

1. A nebulizer of liquids comprising a structure having in combination asmall centrifugal chamber closed at one end and having a small outlet atits other end, orifices admitting a liquid to whirl in the saidcentrifugal chamber toward said small outlet, and a slotin the dischargeside of the said nebulizer, the said small outlet terminating in thesaid slot, and .a frusto-spherical projection at the discharge side ofthe nebulizer, the said slot extending across the said projection.

2. A nebulizer of liquids consisting of a structure having incombination a small centrifugal chamber having a substantially fiatclosure at one end and a substantially conical shape at the other end, anebulizing outlet at the point of the conical end, orifices admitting aliquid to whirl in the small centrifugal chamber toward the nebulizingoutlet, and parallel flat surfaces adjacent the discharge side of thesaid nebulizing outlet, the said fiat surfaces forming substantiallysegments of a circle, the chords of which are immediately adjacent thesaid nebulizing outlet.

3. A nebulizer of liquids comprising a structure having in combination asmall centrifugal passage closed at one end and having a nebulizingoutlet at its other end, orifices admitting a liquid into the smallcentrifugal passage substantially tangent to the wall thereof and at anangle to the axis thereof, and means at the discharge side of thenebulizer consisting of a frusto-spherical projection and a slotdiagonally across and in central alignment with the said nebulizingoutlet, to give the liquid spray passing through the nebulizing outlet,a substantially fan-like shape.

' In testimony whereof I have hereunto set my hand and seal in presenceof two subscribing witnesses.

ALBERTW. MORSE. [1 5.1

Witnesses M. CHURCHILL,

W. W. CowAN.

